San Diego Formation

San Diego Formation
Stratigraphic range: Pliocene
TypeGeologic formation
Lithology
PrimaryConglomerate
OtherSandstone
Location
RegionSan Diego County, California,
Baja California
CountryUnited States,
Mexico
Type section
Named forSan Diego, California

The San Diego Formation is a geological formation in southwestern San Diego County, California, United States, and northwestern Baja California, Mexico.